/* This Day — marketing site */

:root {
  --bg-deep: #0a0e14;
  --bg-elevated: #121820;
  --bg-card: #1a2230;
  --bg-soft: #f4f6f9;
  --text-primary: #0f1419;
  --text-inverse: #f8fafc;
  --text-muted: #5c6b7a;
  --text-muted-inverse: #9aa8b8;
  --accent: #4a7fe8;
  --accent-hover: #3d6fd9;
  --accent-soft: rgba(74, 127, 232, 0.14);
  --border: rgba(255, 255, 255, 0.08);
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.35);
  --radius: 16px;
  --radius-sm: 10px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-brand: "New York", "Iowan Old Style", "Apple Garamond", Baskerville, "Palatino Linotype", Palatino, Georgia, serif;
  --max-width: 1120px;
  --header-h: 56px;
  --page-gutter: max(1.25rem, env(safe-area-inset-left, 0px));
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.55;
  color: var(--text-primary);
  background: var(--bg-soft);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.landing-page,
.legal-page {
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

.landing-page {
  background: #fff;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--accent-hover);
}

.container {
  width: min(100% - 2 * var(--page-gutter), var(--max-width));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 1000;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: #fff;
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  left: 0;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text-inverse);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.05rem;
}

.brand:hover {
  color: #fff;
}

.brand-name {
  font-weight: inherit;
  font-size: inherit;
}

.brand--text-only {
  font-weight: 400;
}

.brand--text-only .brand-name {
  font-family: var(--font-brand);
  font-size: 1.35rem;
  letter-spacing: 0.01em;
  text-transform: lowercase;
  white-space: nowrap;
}

.brand-icon {
  flex-shrink: 0;
  line-height: 0;
}

.app-icon {
  display: block;
}

.app-icon--lg {
  margin-bottom: 1.25rem;
}

.device-frame {
  display: block;
  width: 100%;
  height: auto;
}

.device-frame--hero {
  max-width: min(405px, 88vw);
  margin-inline: auto;
  filter: drop-shadow(0 16px 40px rgba(0, 0, 0, 0.3));
}

.device-frame--feature,
.device-frame--premium {
  max-width: min(360px, 100%);
  margin-inline: auto;
  filter: drop-shadow(0 10px 28px rgba(15, 20, 25, 0.2));
}

.header-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.25rem;
}

.header-nav a {
  color: var(--text-muted-inverse);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
}

.header-nav a:hover,
.header-nav a[aria-current="page"] {
  color: #fff;
}

/* Hero */

.hero {
  position: relative;
  overflow: hidden;
  background: var(--bg-deep);
  color: var(--text-inverse);
  padding: clamp(3rem, 8vw, 6rem) 0 clamp(4rem, 10vw, 7rem);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(74, 127, 232, 0.22), transparent 55%),
    radial-gradient(ellipse 50% 40% at 10% 80%, rgba(120, 160, 255, 0.12), transparent 50%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
  }
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1.25rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: #b8c9e8;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: 999px;
}

.hero h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.hero-lead {
  margin: 0 0 2rem;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.6;
  color: var(--text-muted-inverse);
  max-width: 34ch;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.app-store-badge {
  display: inline-block;
  line-height: 0;
  transition: transform 0.2s ease, opacity 0.2s ease, filter 0.2s ease;
}

.app-store-badge:hover {
  transform: scale(1.03);
  opacity: 0.92;
  filter: drop-shadow(0 10px 18px rgba(0, 0, 0, 0.16));
}

.app-store-badge img {
  height: 54px;
  width: auto;
}

.hero-note {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted-inverse);
}

.hero-press {
  margin: 1.75rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--text-muted-inverse);
}

.hero-press-label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #9ec0ff;
}

.hero-press a {
  display: inline-block;
  margin-top: 0.35rem;
  color: #c5d9ff;
  font-weight: 600;
  text-decoration: none;
}

.hero-press a:hover {
  color: #fff;
  text-decoration: underline;
}

.hero-visual {
  display: grid;
  place-items: center;
}

/* Sections */

.section {
  padding: clamp(3.5rem, 7vw, 5.5rem) 0;
}

.section--white {
  background: #fff;
}

.section--muted {
  background: var(--bg-soft);
}

/* Legacy alias */
.section--alt {
  background: #fff;
}

.section-header {
  text-align: center;
  max-width: 42rem;
  margin: 0 auto 3rem;
}

.section-header h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 3.5vw, 2.35rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section-header p {
  margin: 0;
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* Feature carousel */

#features .section-header {
  margin-bottom: 2rem;
}

.section--muted .premium-benefits-list li {
  background: #fff;
}

.feature-carousel {
  width: 100%;
  padding: 0;
}

.feature-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  max-width: 40rem;
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

.feature-visual {
  width: 100%;
  display: flex;
  justify-content: center;
  padding: 0.5rem 0 0;
  overflow: visible;
}

.feature-visual-viewport {
  position: relative;
  width: min(320px, 78vw);
  aspect-ratio: 405 / 828;
  margin-inline: auto;
}

.feature-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0;
  opacity: 0;
  transform: scale(0.97);
  transition:
    opacity 0.7s cubic-bezier(0.25, 0.1, 0.25, 1),
    transform 0.7s cubic-bezier(0.25, 0.1, 0.25, 1);
  pointer-events: none;
  will-change: opacity, transform;
}

.feature-slide.is-active {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
  z-index: 1;
}

.feature-slide .device-frame--feature {
  width: 100%;
  height: auto;
  max-width: 100%;
}

.feature-controls {
  --feature-control-size: 2.75rem;
  display: grid;
  grid-template-columns: var(--feature-control-size) 1fr var(--feature-control-size);
  align-items: center;
  justify-items: center;
  column-gap: 1.25rem;
  width: 100%;
  max-width: 18rem;
  margin-inline: auto;
  padding: 1.25rem 0 1rem;
}

.feature-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--feature-control-size);
  height: var(--feature-control-size);
  padding: 0;
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: var(--text-primary);
  cursor: pointer;
  line-height: 0;
  transition:
    border-color 0.25s ease,
    background 0.25s ease,
    transform 0.25s ease;
}

.feature-nav[data-feature-prev] {
  grid-column: 1;
}

.feature-nav[data-feature-next] {
  grid-column: 3;
}

.feature-nav:hover {
  border-color: rgba(15, 23, 42, 0.22);
  background: #fff;
  transform: scale(1.04);
}

.feature-nav:active {
  transform: scale(0.96);
}

.feature-nav-icon {
  display: block;
  width: 0.625rem;
  height: 1rem;
  flex-shrink: 0;
}

.feature-dots {
  grid-column: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  height: var(--feature-control-size);
  margin: 0;
  padding: 0;
}

.feature-dot {
  display: block;
  width: 0.5rem;
  height: 0.5rem;
  margin: 0;
  padding: 0;
  border: none;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.18);
  cursor: pointer;
  line-height: 0;
  flex-shrink: 0;
  appearance: none;
  -webkit-appearance: none;
  transition:
    width 0.45s cubic-bezier(0.25, 0.1, 0.25, 1),
    background 0.35s ease,
    opacity 0.35s ease;
}

.feature-dot:hover {
  background: rgba(15, 23, 42, 0.32);
}

.feature-dot.is-active {
  width: 1.5rem;
  background: var(--text-primary);
}

.feature-copy {
  width: 100%;
  text-align: center;
  padding-bottom: 0.5rem;
}

.feature-copy-viewport {
  position: relative;
  width: 100%;
  max-width: 32rem;
  margin-inline: auto;
  transition: min-height 0.55s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.feature-panel {
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  box-sizing: border-box;
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition:
    opacity 0.55s cubic-bezier(0.25, 0.1, 0.25, 1) 0.08s,
    transform 0.55s cubic-bezier(0.25, 0.1, 0.25, 1) 0.08s,
    visibility 0s linear 0.55s;
  pointer-events: none;
}

.feature-panel.is-active {
  position: relative;
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
  transition:
    opacity 0.55s cubic-bezier(0.25, 0.1, 0.25, 1) 0.08s,
    transform 0.55s cubic-bezier(0.25, 0.1, 0.25, 1) 0.08s,
    visibility 0s linear 0s;
}

.feature-carousel[data-direction="prev"] .feature-panel {
  transform: translateY(-14px);
}

.feature-carousel[data-direction="prev"] .feature-panel.is-active {
  transform: translateY(0);
}

.feature-kicker {
  margin: 0 0 0.5rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}

.feature-panel h3 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  letter-spacing: -0.02em;
}

.feature-panel p {
  margin: 0;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.6;
}

@media (min-width: 900px) {
  .feature-visual-viewport {
    width: min(340px, 42vw);
  }

  .feature-stage {
    max-width: 44rem;
  }
}

/* Premium */

.premium-layout {
  display: grid;
  gap: 2rem;
  align-items: center;
  overflow: visible;
}

@media (min-width: 900px) {
  .premium-layout {
    grid-template-columns: 1fr minmax(280px, 400px);
    gap: 3rem;
  }
}

.premium-benefits {
  max-width: 36rem;
}

.premium-benefits-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.85rem;
}

.premium-benefits-list li {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  padding: 1rem 1.1rem;
  background: #f8fafc;
  border: 1px solid #e4e9f0;
  border-radius: var(--radius-sm);
  line-height: 1.5;
  color: var(--text-primary);
}

.premium-check {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  display: grid;
  place-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: #fff;
  background: var(--accent);
  border-radius: 50%;
  margin-top: 0.1rem;
}

.premium-benefits-list strong {
  color: var(--text-primary);
}

.premium-visual {
  margin: 0;
  display: grid;
  place-items: center;
  padding: 1rem 1.25rem 1.5rem;
  overflow: visible;
}

/* Privacy trust */

.trust-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 700px) {
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.trust-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.25rem;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid #e4e9f0;
}

.trust-item strong {
  display: block;
  margin-bottom: 0.25rem;
}

.trust-item p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.trust-check {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  background: #e8f2e8;
  color: #2d6a3e;
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.85rem;
}

/* CTA band */

.cta-band {
  background: linear-gradient(135deg, var(--bg-deep) 0%, #152030 100%);
  color: var(--text-inverse);
  text-align: center;
  padding: clamp(3rem, 6vw, 4.5rem) 0;
}

.cta-band h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.6rem, 3vw, 2.1rem);
}

.cta-band p {
  margin: 0 auto 1.75rem;
  max-width: 36ch;
  color: var(--text-muted-inverse);
}

.cta-band .app-store-badge {
  margin-inline: auto;
}

/* Footer */

.site-footer {
  background: var(--bg-deep);
  color: var(--text-muted-inverse);
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
}

.site-footer--compact {
  padding: 1.75rem 0;
}

.footer-inner {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 700px) {
  .footer-inner {
    grid-template-columns: 1fr auto;
    align-items: start;
  }
}

.footer-brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: inherit;
  text-decoration: none;
}

.footer-brand-link:hover {
  color: #fff;
}

.footer-brand-link strong {
  display: block;
  color: #fff;
  font-size: 1.05rem;
}

.footer-brand-link p {
  margin: 0.35rem 0 0;
  font-size: 0.9rem;
  color: var(--text-muted-inverse);
}

.footer-brand-link--icon-only {
  display: inline-block;
  line-height: 0;
}

/* Temporary: remove ~June 2026 — / used to host the privacy policy */

.landing-reloc-banner {
  background: linear-gradient(135deg, #e8f1fc 0%, #f4f6f9 100%);
  border-bottom: 1px solid #d8e3f0;
}

.landing-reloc-banner-inner {
  padding: 0.85rem 0;
}

.landing-reloc-banner-inner p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-primary);
  text-align: center;
}

.landing-reloc-banner-inner a {
  font-weight: 600;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}

.footer-nav a {
  color: var(--text-muted-inverse);
  text-decoration: none;
  font-size: 0.92rem;
}

.footer-nav a:hover {
  color: #fff;
}

.footer-copy {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 0.82rem;
  opacity: 0.7;
}

/* Legal pages */

.legal-main {
  padding: 2.5rem 0 4rem;
  background: #fff;
}

.legal-content {
  max-width: 42rem;
}

.legal-content h1 {
  margin: 0 0 0.5rem;
  font-size: 2rem;
  letter-spacing: -0.02em;
}

.legal-content h2 {
  margin: 2rem 0 0.75rem;
  font-size: 1.25rem;
}

.legal-content h3 {
  margin: 1.25rem 0 0.5rem;
  font-size: 1.05rem;
}

.legal-content p,
.legal-content li {
  color: #2a3544;
}

.legal-content ul {
  padding-left: 1.25rem;
}

.legal-content > :first-child {
  margin-top: 0;
}

/* Mobile-first landing optimizations */

@media (max-width: 899px) {
  .hero {
    padding-top: 2rem;
    padding-bottom: 2.5rem;
  }

  .hero-grid {
    gap: 2rem;
  }

  .hero-copy {
    text-align: center;
  }

  .hero-copy .app-icon--lg {
    margin-inline: auto;
  }

  .hero-cta {
    align-items: center;
  }

  .hero-press {
    text-align: left;
  }

  .hero-visual {
    order: -1;
  }

  .feature-visual-viewport {
    width: min(300px, 82vw);
  }

  .premium-layout {
    text-align: left;
  }

  .premium-benefits-list {
    max-width: none;
  }

  .premium-visual {
    order: -1;
  }

  .trust-grid {
    grid-template-columns: 1fr;
  }

  .cta-band {
    padding: 2.5rem 0;
  }

  .footer-inner {
    text-align: center;
    justify-items: center;
  }

  .footer-nav {
    justify-content: center;
  }
}

@media (max-width: 899px) {
  .site-header .header-inner {
    align-items: center;
  }

  .site-header .header-nav {
    gap: 0.35rem 0.55rem;
    justify-content: flex-end;
    max-width: 58%;
  }

  .site-header .header-nav a {
    font-size: 0.72rem;
    font-weight: 500;
    line-height: 1.2;
  }

  .brand--text-only .brand-name {
    font-size: 1.05rem;
  }
}

@media (max-width: 640px) {
  :root {
    --header-h: 48px;
  }

  body {
    font-size: 16px;
  }

  .site-header .header-nav {
    gap: 0.3rem 0.45rem;
    max-width: 62%;
  }

  .site-header .header-nav a {
    font-size: 0.68rem;
  }

  .brand--text-only .brand-name {
    font-size: 0.98rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-lead {
    font-size: 1rem;
  }

  .section {
    padding: 2.75rem 0;
  }

  .section-header {
    margin-bottom: 2rem;
  }

  .section-header h2 {
    font-size: 1.6rem;
  }

  .app-store-badge img {
    height: 48px;
    width: auto;
  }

  .device-frame--hero {
    max-width: min(300px, 92vw);
  }

  .device-frame--feature,
  .device-frame--premium {
    max-width: min(280px, 88vw);
  }
}

@media (prefers-reduced-motion: reduce) {
  .feature-slide,
  .feature-panel,
  .feature-dot,
  .feature-copy-viewport {
    transition: none;
  }

  .feature-slide {
    transform: none;
  }

  .feature-panel {
    transform: none;
  }
}

.feature-carousel--reduced-motion .feature-slide,
.feature-carousel--reduced-motion .feature-panel,
.feature-carousel--reduced-motion .feature-dot,
.feature-carousel--reduced-motion .feature-copy-viewport {
  transition: none;
}

.feature-carousel--reduced-motion .feature-slide,
.feature-carousel--reduced-motion .feature-panel {
  transform: none;
}